Biodegradable ultrafiltration membrane enhanced with anti-biofouling agent from Anacardium occidentale extract.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-05-01 Epub Date: 2024-06-05 DOI:10.1080/08927014.2024.2357309

Vania Septa Anggraeni, Hoong Chern Lee, Pei Sean Goh, Putu Doddy Sutrisna, Eric Wei Chiang Chan, Chen Wai Wong

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Abstract

Our research focuses on developing environmentally friendly biodegradable ultrafiltration (UF) membranes for small-scale water purification in areas lacking infrastructure or during emergencies. To address biofouling challenges without resorting to harmful chemicals, we incorporate bio-based extracts, such as methyl gallate from A. occidentale leaves, a Malaysian ulam herb, known for its quorum sensing inhibition (QSI) properties. The methyl gallate enriched extract was purified by solvent partitioning and integrated into cellulose-based UF membranes (0 to 7.5% w w^-1) through phase inversion technique. The resulting membranes exhibited enhanced anti-organic fouling and anti-biofouling properties, with flux recovery ratio (FRR) of 87.84 ± 2.00% against bovine serum albumin and FRRs of 76.67 ± 1.89% and 69.57 ± 1.77% against E. coli and S. aureus, respectively. The CA/MG-5 membrane showed a 224% improvement in pure water flux (PWF) compared to the neat CA membrane. Our innovative approach significantly improves PWF, presenting an environmentally friendly method for biofouling prevention in UF membrane applications.

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使用西洋金合欢提取物中的抗生物污垢剂增强的可生物降解超滤膜。

我们的研究重点是开发环境友好型生物可降解超滤膜（UF），用于缺乏基础设施地区或紧急情况下的小规模水净化。为了在不使用有害化学物质的情况下解决生物污垢问题，我们采用了生物基提取物，例如从一种马来西亚乌兰草中提取的没食子酸甲酯。富含没食子酸甲酯的提取物通过溶剂分区法纯化，并通过相反转技术整合到纤维素基超滤膜（0 至 7.5% w w-1）中。得到的膜具有更强的抗有机物堵塞和抗生物堵塞性能，对牛血清白蛋白的通量恢复比（FRR）为 87.84 ± 2.00%，对大肠杆菌和金黄色葡萄球菌的通量恢复比（FRR）分别为 76.67 ± 1.89% 和 69.57 ± 1.77%。与纯 CA 膜相比，CA/MG-5 膜的纯水通量（PWF）提高了 224%。我们的创新方法大大提高了纯水通量，为超滤膜应用中的生物污垢预防提供了一种环境友好型方法。

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